Abstract
With the cloud computing, storage and computing resources are moving to remote resources such as virtual servers and storage systems in large datacenters, which raise many performance and management challenges. We consider distributed cloud systems, which deploy micro DC that are geographically distributed over a large number of locations in a wide-area network. In this article, we also argue for a micro DC-based network model that provides higher-level connectivity and logical network abstraction that are integral parts of wellness applications. We revisit our previously proposed logical network models that are used to configure the logical wellness network.